The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Dec. 15, 2015
Filed:
Jun. 03, 2011
Shinsuke Hamada, Tokyo, JP;
Yasuhiro Tahara, Tokyo, JP;
Kouji Kimura, Tokyo, JP;
Hitachi, Ltd., Tokyo, JP;
Abstract
A DBMS is configured to identify a Boolean expression and conditional expressions from a search query, and to extract for each of the identified conditional expressions the value of a record ID conforming to a conditional expression. The DBMS is configured to change a conformity result value corresponding to the extracted record ID and conditional expression to a first value signifying conformity, in Boolean expression determination information, which is information that includes a determination set having a record ID value and a plurality of conformity result values respectively corresponding to a plurality of conditional expressions, and, on the basis of the Boolean expression, to perform logical operations on the plurality of conformity result values of a determination set, for each determination set in the Boolean expression determination information.